| Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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| 06/01/1993 | US5216586 Power supply start-up circuit |
| 06/01/1993 | US5216568 Superconducting magnet device |
| 06/01/1993 | US5216284 Passenger safety device for vehicles |
| 05/27/1993 | WO1993010587A1 Electronic apparatus for measuring the activity of an oil transformer |
| 05/27/1993 | DE4135869C1 Overcurrent and short-circuit protection for multiphase inverter - ignites extinction thyristor, which excites resonant circuit formed from capacitor and inductor such that current quickly blocks power semiconductor switch |
| 05/26/1993 | CN2134741Y Security protecting switch for motor |
| 05/26/1993 | CN2134740Y Phase loss protector |
| 05/26/1993 | CN2134739Y General phase loss leakage protector |
| 05/26/1993 | CN2134738Y Overload protection and auto-control system means for ic locomotive |
| 05/26/1993 | CN2134737Y Protector for 3-phase asynchronous motor |
| 05/26/1993 | CN2134736Y Electrical machinery protective knife-blade switch |
| 05/26/1993 | CN2134733Y Phase loss protector alarm for 3-phase power source |
| 05/25/1993 | US5214575 Ground fault detector for an inverter and a method therefor |
| 05/25/1993 | US5214559 Monitoring device with a switching mechanism |
| 05/25/1993 | US5214359 Winch with electronic current limiter |
| 05/19/1993 | EP0542365A1 Over-discharge protection for rechargeable batteries |
| 05/19/1993 | EP0542040A2 Trip control device for circuit breaker |
| 05/19/1993 | DE4138194A1 Detecting position and motion direction of translationally and/or rotationally moving system - comparing sensor pulses with motor ripple pulses and correcting corresponding path lengths or angle settings |
| 05/19/1993 | CN2133974Y Remote-controlled tv set overvoltage protector |
| 05/19/1993 | CN2133973Y Magnetic test type thyristor protector for circuit break and phase interruption of motor |
| 05/19/1993 | CN2133972Y Protector for hand-held electric tools |
| 05/19/1993 | CN2133971Y Three-phase ac motor protector |
| 05/19/1993 | CN2133970Y Phase interruption and overload protector for power transformer and motor |
| 05/19/1993 | CN2133969Y Simple protector for motors |
| 05/19/1993 | CN2133968Y Motor protector |
| 05/19/1993 | CN2133967Y Resonant suppressor for bus voltage mutual-inductor |
| 05/19/1993 | CN2133966Y Overcurrent protection voltage regulator |
| 05/19/1993 | CN2133959Y Ac electronic cut-off switch |
| 05/19/1993 | CN2133935Y Phase interruption protection ac contactor |
| 05/19/1993 | CN1020701C Controlling apparatus for elevator door |
| 05/18/1993 | CA1318016C Current fault detection system and method for ac controllers |
| 05/13/1993 | WO1993009584A1 Open circuit monitor |
| 05/13/1993 | DE4136532A1 Determining selectivity limit of series-connected power switches - determining operate margin of magnetic trigger of main switch by calculation of three parameters |
| 05/12/1993 | EP0540716A1 Power generation system with transient suppressor |
| 05/12/1993 | EP0256141B1 Method of controlling servo motor |
| 05/12/1993 | CN2133084Y Recovery proleterting suitch for anti-thunder, over-voltage, over-current and auto-delay of electronic equipment |
| 05/12/1993 | CN2133083Y Control apparatus of mixed exchange power |
| 05/12/1993 | CN2133082Y Secondary protecting device of motor |
| 05/12/1993 | CN2133081Y Multifunction protector for three-phase motor |
| 05/12/1993 | CN2133080Y Combined electro-magnetic starter |
| 05/12/1993 | CN2133079Y Automatic protector for ac. motor |
| 05/12/1993 | CN2133078Y Protector of motor |
| 05/11/1993 | US5210674 Superconducting coil protective system |
| 05/11/1993 | US5210475 Current sensing circuit for use with a current controlling device in a power delivery circuit |
| 05/11/1993 | US5209110 Over-loading monitoring system for electric motor in automotive engine simulating apparatus |
| 05/06/1993 | DE4136731A1 Drive circuitry for mains supplied AC converter - operates turn off capacitor via GTO thyristor with coupled inductance and diode |
| 05/06/1993 | DE4135680A1 Inverter motor drive limiting rate of change of output currents - using inductive stages coupled between inverter outputs and motor units |
| 05/05/1993 | EP0540417A1 Overload protection device for electronic commutated electric motor |
| 05/05/1993 | CN2132324Y Phase-failure protector for electric machine |
| 05/05/1993 | CN2132323Y Electronic controlled protector for electric machine |
| 05/05/1993 | CN2132322Y Motor protector with fault language display function |
| 05/05/1993 | CN2132321Y Overtemperature protector for motor |
| 05/05/1993 | CN2132315Y Phase interruption protective device for contactor |
| 04/29/1993 | WO1993008628A1 Method and device for avoiding overcurrents in a welding converter |
| 04/28/1993 | EP0539301A1 Coupling device of an external power supply to an aircraft on the ground |
| 04/28/1993 | EP0539163A2 Inverter air conditioner |
| 04/28/1993 | CN2131250Y Soft starter for motor |
| 04/28/1993 | CN2131246Y power regulator for household electrothermic and electro-optic apparatuses |
| 04/28/1993 | CN2131244Y Inversion power carried in car |
| 04/28/1993 | CN2131237Y Multifunctional protector for motor |
| 04/27/1993 | US5206801 Ac/dc converter fault detector |
| 04/27/1993 | US5206776 Protection system for ac generators |
| 04/27/1993 | US5206775 Circuit bypass device |
| 04/27/1993 | US5206572 Motor controller |
| 04/22/1993 | DE4134461A1 Verfahren und vorrichtung zur vermeidung uebergrosser stroeme in einem schweissumrichter Method and device for avoidance by large currents in a welding converter |
| 04/21/1993 | EP0538072A2 Method and apparatus for detecting superconductor quench and method and apparatus for preventing superconductor quench |
| 04/21/1993 | CN2130297Y Phase-loss electronic protector for three-phase electric motor |
| 04/21/1993 | CN2130296Y Protective switch for refrigerator and air conditioner |
| 04/21/1993 | CN1071284A Quick connection protector of pulsive laser device |
| 04/20/1993 | US5204592 Apparatus for operating the roof panel of a sliding roof or a sliding tilting roof of a motor vehicle |
| 04/15/1993 | WO1993007597A1 Communication interface for bus connected circuit breakers |
| 04/15/1993 | DE4129495C1 Adjusting short-circuit torque of electric servo motor - storing short circuit current required for desired torque in electronic motor controller after comparison with actual torque |
| 04/14/1993 | EP0536488A2 Overload protection for the power amplifier of a DC-motor |
| 04/14/1993 | CN2130011Y Speed regulator for motor frequency changing |
| 04/13/1993 | CA1316118C Drive force distribution control system for motor vehicle |
| 04/07/1993 | EP0536011A1 Control and output protection system, especially for a programmable controller |
| 04/07/1993 | CN2129491Y Computer controlled power saving type motor starting box |
| 04/07/1993 | CN1070773A Electronic automatic protector for motor |
| 04/06/1993 | US5200877 Battery protection system |
| 04/06/1993 | US5200872 Internal protection circuit for electrically driven device |
| 04/06/1993 | US5200691 Control system for excitation of synchronous machine |
| 04/01/1993 | WO1993006651A1 Ac/dc converter fault detector |
| 04/01/1993 | WO1993006643A1 Battery-operated device |
| 04/01/1993 | DE4204017C1 Control arrangement for folding roof of vehicle - has counter circuit ascertaining timed intervals between end position switches operated sequentially |
| 04/01/1993 | DE4131981A1 Batteriebetriebenes geraet Geraet Battery operated |
| 03/31/1993 | EP0533822A1 Low impedance power conditioner apparatus |
| 03/31/1993 | CN2129043Y Auto protection arrangement for phase interruption |
| 03/31/1993 | CN1070518A Device for protecting power supply circuit |
| 03/31/1993 | CN1070517A Electrical power supply system |
| 03/30/1993 | US5198956 Overtemperature sensing and signaling circuit |
| 03/24/1993 | EP0532521A1 Process for testing devices. |
| 03/24/1993 | CN2128803Y Full-protective electronic regulator |
| 03/23/1993 | US5196913 Input protection device for improving of delay time on input stage in semi-conductor devices |
| 03/23/1993 | US5196656 Elevator door control apparatus |
| 03/23/1993 | US5195671 Stapler |
| 03/23/1993 | CA1314969C Out-of-step blocking unit |
| 03/19/1993 | EP0571383A4 Battery protection system. |
| 03/18/1993 | WO1993005557A1 Motor controller |
| 03/18/1993 | DE4211495A1 Overload protection for capacitor split- phase motor - has induced voltage in unexcited winding compared with DC reference and microprocessor to initiate relay if threshold exceeded |
| 03/17/1993 | EP0532045A2 Electrical power supply system |